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Finding the Fourth Proportional to 8,647.02, 12,969.11 and 3,099.33

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Solution

The fourth proportional to 8,647.02, 12,969.11 and 3,099.33 is: 4,648.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.02 : 12,969.11 = 3,099.33 : x
  2. Step 2: Convert to fraction form
    8,647.02/12,969.11 = 3,099.33/x
  3. Step 3: Cross multiply
    8,647.02x = 12,969.11 × 3,099.33
  4. Step 4: Simplify right side
    8,647.02x = 40,195,559.44
  5. Step 5: Solve for x
    x = 40,195,559.44/8,647.02
  6. Step 6: Final answer
    x = 4,648.49

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.